no code implementations • 28 Dec 2022 • Iran M. Braga Jr., Roberto P. Antonioli, Gabor Fodor, Yuri C. B. Silva, Walter C. Freitas Jr
This paper investigates wireless-powered cell-free systems, in which the users send their uplink data signal while simultaneously harvesting energy from network nodes and user terminals - including the transmitting user terminal itself - by performing self-energy recycling.
no code implementations • 29 Mar 2021 • Iran M. Braga Jr., Roberto P. Antonioli, Gabor Fodor, Yuri C. B. Silva, Carlos F. M. e Silva, Walter C. Freitas Jr
This problem is motivated by the observation that multicell MU-MIMO OFDM systems serve multiple quality of service classes and the system performance depends critically on both the transceiver design and the scheduling algorithm.
no code implementations • 3 Mar 2020 • Juno V. Saraiva, Iran M. Braga Jr., Victor F. Monteiro, F. Rafael M. Lima, Tarcisio F. Maciel, Walter C. Freitas Jr., F. Rodrigo P. Cavalcanti
In this article, we study a Radio Resource Allocation (RRA) that was formulated as a non-convex optimization problem whose main aim is to maximize the spectral efficiency subject to satisfaction guarantees in multiservice wireless systems.